Spindle bolster for roving machines



A.May 7, 1929. A, Q01-lc 1,711,518

I SPINDLE BOLSTER FO'y ROVING MACHINES Filed oct. 2o, 192e F91 W 7- '@I l El.,v mmf/0e.

A me/yay Patented May 7,1929. y i

' i UNITED STATES gPATENT orricr.;l

ALBERT corio, or HERBRECHTTNGEN, GERMANY.

SPINDLE, lBonsfrniiron Bovine ivriicniniais.'l

ApplicationL led October 20, 1926', Serial No. 142,972, and in Germany October 24, 19215.

This invention relates to a bolster for the spindles 'of roving machines, and more par-l ticularly to `that type ot' machine in which the bolster is moved upwardly and downwardly with the copping rail, whilst the flyer together with the spindle executes merelya rotary movement. jThe bearing portion between the bolster and the lyer spindle is the part of a roving machine which is Amost subjected to rapid wear, and which causes the greater portion of any irregularityin the run of the machine, the bearing having hitherto been constructed as a simple sliding bearing. n j

VDuring the rotation of vthe spindler the bolster, which is mounted on the copping` rail, moves slowly in an `upward and downward direction. This movement causes the lubricant to be gradually'scraped oil from the spindle, particularly if the bearing has already been widened due to friction. The lubricating agent is then able to nieve downwardly along the spindle without obstruction. The spindle accordingly runs e un,- evenly, so that not only a knocking or vibrai tion inthe machine is caused, but the quality of the yarn is also affected. n. A

This drawback, according to the invention,

is avoidedl by the provision ot rollers, which are situated in recesses in the bolster. The spindlerests against these rollers, the latter being prevented from falling out towards the outside by means ot a hood, whilst the recesses are tapered off towards the vinside for. the purpose ofholding the rollers in this direction.

The invention is illustrated by way of eX- ample in the accompanying which Fig. l is a longitudinal section (with part in full) of the roving machine. e

Fig. 2 is a longitudinal section through .Y the upper part `ot the bolster, on enlarged scale, and

Fig. 3 is a section on the line III- III ot' Fig. 2. i

Referring to the drawing, l is the copping rail, which is moved upwardly and downwardly by the wheel and rack gear l2, and on which is mounted the bolster 3. The spool 4f, on which the cop 5 is wound, is operated by the copping rail in the known manf ner. The flyer spindle is passed through drawing, in

tapering walls oi the recesses, and towardsthe outside by the hood 1l. These recesses in which the rollers are mounted are lilled with 'a consistent grease.

Upon the rotation ofthe spindle (l withinv the bolsteri'olling friction is thus caused at the bearing points between .the spindle and the rollers, whilst due tothe generous pro-rv vision lof grease therollers roll in the re;

cesses.r The total resistancedue to friction is considerably less than in the case ot the known arrangement, and it is quite uniiccessary to frequently renew the lubricating *Y agent to such extent as was hitherto the case.

The rollers, when the same have been Worn down,1nay be `exchanged in very simple manner.

Se* Y The arrangement described inthe above.

also has they advantage that the bolstei's hitherto in use, which have been` widened out by friction, may be remodelethas described above, to forni a bolster according to the iiivention. s f- 1 y What I claim as new and desire to secure by Letters Patent is:

l. A bolster for the spindles of rovingina-v chines', having a portion of its vcircu'i'ni'erence cut in, recesses insaid'cut-in portion et' the bolster, rollers in lsaid recesses and contacting the spindle, and a removable hood on said cutsin portion of the bolster for preventing the rollers from falling outwardly, the recesses beine` tapered inwardly toward the spindle to prevent the rollers from falling inwardly.

2. A .bolster for the spindles of roving machines as recited in claim ly wherein they signature. Y Y

ALBERT COTIG ioo 

